SAML Single Sign On (SSO) into Bitbucket using AuthAnvil

Bitbucket SAML app gives the ability to enable SAML Single Sign On for Bitbucket Software. Bitbucket Software is compatible with all SAML Identity Providers. Here we will go through a guide to configure SSO between Bitbucket and AuthAnvil. By the end of this guide, AuthAnvil users should be able to login and register to Bitbucket Software.

Step 1: Setup AuthAnvil as Identity Provider

Prerequisites: Copy these values from the Service Provider Info tab of the SAML plugin.

3.4. Manual Configuration
You can also configure IDP settings on Bitbucket manually. For that, you need to click here.

Enter the following details

IDP Entity ID /Issuer

Single Sign-on URL

Single Logout URL

IDP Signing Certificate

4. Enter username attribute name & email address attribute name from IDP. Click on the Save button after adding valid information. If you are not sure about this information, you can configure this later.

If your IDP changes certificates at intervals, you can select Refresh metadata periodically. Select 5 minutes for the best results.

Click Import

B. By uploading Metadata XML file

Click on Import from Metadata in Configure IDP tab

Select IDP: Import from Metadata File

Upload metadata file

Click Import

C. Manual Configuration

Go to Configure IDP tab and enter the following details

IDP Entity ID

Single Sign On URL

Single Logout URL

X.509 Certificate

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Step 3: Setting up Bitbucket user profile attributes

We will be setting up user profile attributes for Bitbucket. If your users are stored in a directory that is Read Only, please check Disable Attribute Mapping in User Profile tab and follow steps given in Matching a User.

a. Finding correct attributes

Go to Configure IDP tab. Scroll down and click on Test Configuration.

You will see all the values returned by your IDP to Bitbucket in a table. If you don't see value for First Name, Last Name, Email or Username, make the required settings in your IDP to return this information.

Once you see all the values in Test Configuration, keep the window open and go to User Profile tab.

b. Setting profile attributes

In this tab, fill the values by matching the name of the attribute. For instance, if the Attribute Name in the Test Configuration window is NameID, enter NameID against Username

Setting up both Username and Email is required if you want to let users register. If you want existing users to the only login, configure the attribute using which you will match the user in Bitbucket.

c. Matching a User

When the user logs into
Bitbucket, one of the user's data/attribute coming in from the IDP is used to search the user in Bitbucket. This is used to detect the user in Bitbucket and log in the user to the same account.

Step 4: Assigning groups to users

We will be setting up user group attributes for Bitbucket. If your users are stored in a directory that is Read Only, please check Disable Group Mapping in User Groups tab and skip to Setting default group.

a. Finding Group Attribute

Just like we found Attribute Name for User Profile attributes, we find group attribute.

Go to Configure IDP tab. Scroll down and click on Test Configuration.

You will see all the values returned by your IDP to Bitbucket in a table. If you don't see value with groups, make the required settings in your IDP to return group names.

Once you see all the values in Test Configuration, keep the window open and go to User Groups tab.

Enter the Attribute Name of group against Group Attribute

At the bottom of the page, all groups in Bitbucket are shown. You can map groups in IDP which correspond to Bitbucket groups. For example, if you want all users in dev-ops and dev groups in IDP to be added to crucible-users, you will need to enter dev-ops;dev against crucible-users

If you want user mapping to work for only limited groups in Bitbucket, check the option Update User Groups

b. Setting default group

Select the users' Default Group in the tab User Groups. If no group is mapped, users are added by default to this group.

You can enable default groups for all users or only new users using the option Enable Default Groups for.

Step 5: SSO Settings

The settings in SSO Settings tab define the user experience for Single Sign On.

a. Sign In Settings

Set button text for button on login page using Login Button Text

Set redirect URL after login using Relay State. Keep this empty for coming back to the same page user started from

Enable Auto-redirect to IDP if you want to allow users to login only using IDP. Enable backdoor for emergency

b. Sign Out Settings

Set Logout URL or Logout Template to redirect users after logout action.

c. SSO Error Settings

Set error template to redirect users to a custom error page instead of login page. Use this if you have Auto-redirect to IDP enabled.